Router Redundancy Commands 4

•When a VRRP packet is received from another router in the group, its authentication key is compared to the string configured on this router. If the keys match, the message is accepted. Otherwise, the packet is discarded.

•Plain text authentication does not provide any real security. It is supported only to prevent a misconfigured router from participating in VRRP.

Example

Console(config-if)#vrrp 1 authentication bluebird

Console(config-if)#

vrrp priority

This command sets the priority of this router in a VRRP group. Use the no form to restore the default setting.

Syntax

vrrp group priority level no vrrp group priority

•group - Identifies the VRRP group. (Range: 1-255)

•level - Priority of this router in the VRRP group. (Range: 1-254)

Default Setting

100

Command Mode

Interface (VLAN)

Command Usage

•A router that has a physical interface with the same IP address as that used for the virtual router will become the master virtual router. The backup router with the highest priority will become the master router if the current master fails. When the original master router recovers, it will take over as the active master router again.

•If two or more routers are configured with the same VRRP priority, the router with the higher IP address is elected as the new master router if the current master fails.

•If the backup preempt function is enabled with the vrrp preempt command, and a backup router with a priority higher than the current acting master comes on line, this backup router will take over as the new acting master. However, note that if the original master (i.e., the owner of the VRRP IP address) comes back on line, it will always resume control as the master.

Example

Console(config-if)#vrrp 1 priority 1

Console(config-if)#

Related Commands

vrrp preempt (4-318)

4-317

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Microsoft ES4649, ES4625 manual Vrrp priority, Related Commands Vrrp preempt
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ES4649, ES4625 specifications

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